16041281 has 4 divisors (see below), whose sum is σ = 16738752. Its totient is φ = 15343812.

The previous prime is 16041269. The next prime is 16041287. The reversal of 16041281 is 18214061.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16041281 - 2¹⁰ = 16040257 is a prime.

It is a super-2 number, since 2×16041281² = 514645392241922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 697447 = 16041281 / (1 + 6 + 0 + 4 + 1 + 2 + 8 + 1).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16041287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 348701 + ... + 348746.

It is an arithmetic number, because the mean of its divisors is an integer number (4184688).

Almost surely, 2^16041281 is an apocalyptic number.

It is an amenable number.

16041281 is a deficient number, since it is larger than the sum of its proper divisors (697471).

16041281 is an equidigital number, since it uses as much as digits as its factorization.

16041281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697470.

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 16041281 is about 4005.1568009255. The cubic root of 16041281 is about 252.2007355394.

The spelling of 16041281 in words is "sixteen million, forty-one thousand, two hundred eighty-one".